I did 9 years in the Air Force. My complete experience was not the best, but I loved my job for at least the first 5 years.
I think a problem with asking a small number of people about their military experience is that everyone's experience varies, and widely. It's not because "your experience may vary"; it's because your experience WILL vary.
In the Air Force, even those with the same job who are stationed at different bases, or work on different aircraft, may love it or hate it. So a Crew Chief for a C-130 at one base, another C-130 crew chief from another base, and a F-16 crew chief from another base will all have different opinions. The operations tempo and mission of each base may also help or hurt its liking. I bet a kid who wanted to be an accountant would love to be part of the Comptroller squadron, but they may hate life if their ASVAB skills point them towards working the hydraulics shop.
By the way, the ASVAB is a good way for determining where to place people, but sometimes recruiters and liaisons will not use it well. All of my scores were very high, at the top, except one - mechanical. It was my lowest by almost 30 points. They wanted to sign me up for a job in "open - mechanical". What sense does that make? The liaison tried to reason that they wanted to make me a more well-rounded person, make me better at what I wasn't quite as good at. I said that sounded like BS, and that if this is what they were going to waste my skills on, I didn't want to join. He then tried to guilt me, asking if I knew how much taxpayer money I was wasting by going through MEPS processing. I told him that I pay taxes too, that they were trying to fill a slot, and walked out of MEPS. Had I waited to try and select a job AFTER I had joined, I may have been forced into a job that was really not the most pleasant.
Since getting out of the military, I've been working mostly with active and prior-service Marines - and trust me, we have all asked MANY questions about each others branches. Many of them, if they sign up and work as aircraft mechanics, may get called for deployment and NOT do that job while overseas; they may be on convoy or security patrol duty, because "every Marine a rifleman" and "you are a Marine before you are a mechanic". It is a different mentality than you see with the Navy or Air Force, where it is more oriented towards "fix the goddamn ship/plane - they do the fighting; if you have to pick up and use a rifle, we're all pretty much fucked already."
